Files
linux/lib
Sumitra Sharma da1a055d01 lib/test_bpf: Call page_address() on page acquired with GFP_KERNEL flag
generate_test_data() acquires a page with alloc_page(GFP_KERNEL).
The GFP_KERNEL is typical for kernel-internal allocations. The
caller requires ZONE_NORMAL or a lower zone for direct access.

Therefore the page cannot come from ZONE_HIGHMEM. Thus there's no
need to map it with kmap().

Also, the kmap() is being deprecated in favor of kmap_local_page() [1].

Hence, use a plain page_address() directly.

Since the page passed to the page_address() is not from the highmem
zone, the page_address() function will always return a valid kernel
virtual address and will not return NULL. Hence, remove the check
'if (!ptr)'.

Remove the unused variable 'ptr' and label 'err_free_page'.

  [1] https://lore.kernel.org/all/20220813220034.806698-1-ira.weiny@intel.com/

Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Signed-off-by: Sumitra Sharma <sumitraartsy@gmail.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Fabio M. De Francesco <fmdefrancesco@gmail.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Link: https://lore.kernel.org/bpf/20230623151644.GA434468@sumitra.com
2023-06-29 15:32:25 +02:00
..
2023-06-05 09:36:35 +02:00
2023-06-13 15:13:20 -07:00
2023-06-09 17:44:13 -07:00
2021-05-06 19:24:12 -07:00
2022-09-26 12:19:12 -07:00
2018-08-16 12:14:42 -07:00
2023-04-08 13:45:37 -07:00
2021-01-21 14:06:00 -07:00
2022-03-07 12:48:35 -07:00
2021-08-19 09:02:55 +09:00
2023-02-02 22:50:01 -08:00
2023-02-02 22:50:01 -08:00
2023-02-02 22:50:01 -08:00
2022-04-22 21:30:57 +02:00
2023-02-15 15:44:43 +01:00
2021-01-03 20:05:18 -05:00
2023-03-19 10:02:04 -07:00
2022-03-07 12:48:35 -07:00
2022-04-29 14:38:01 -07:00
2022-07-10 13:55:49 -07:00
2022-10-03 14:03:21 -07:00
2021-08-19 09:02:55 +09:00
2021-07-08 11:48:20 -07:00
2023-04-17 18:01:23 +02:00
2021-07-08 11:48:20 -07:00
2018-10-16 13:45:44 +02:00
2022-10-03 17:34:32 -07:00
2021-07-08 11:48:20 -07:00
2021-06-18 11:43:09 +02:00
2021-07-08 11:48:20 -07:00
2022-01-20 08:52:54 +02:00
2018-10-15 16:31:29 -04:00